The currency used as the basis for an exchange rate, where foreign currency rates are quoted per single unit of the base currency, commonly US dollars.
A mechanism whereby an exchange rate can be calculated between two currencies for which no direct rate of exchange exists. The US dollar, which is customarily used as the vehicle currency in foreign-exchange trading, functions as the common denominator for such calculations.
Traders in financial markets who engage in high-frequency trading, dealing very frequently for small gains and may hold a position for only a few minutes.
An index that compares variances in the U.S. dollar's value on a scale of 100 with a basket of currencies that include the euro, the yen, the British pound sterling, the Canadian dollar, the Swedish krona, and the Swiss franc.
